A delicate jawbone unearthed in Arizona has revealed North America's oldest known pterosaur, a flying reptile no bigger than ...

A groundbreaking discovery in Arizona’s Petrified Forest reveals North America’s oldest pterosaur.

Meteor showers in July 2025 include the Perseids, Alpha Capricornids and Delta Aquariids. Here's when each shower peaks and how to see it in Arizona.

Scientists have identified a new species of pterosaur from a fossilised jawbone discovered deep in the Arizona desert. The find, in the Grand Canyon State's Petrified Forest National Park, marks the ...

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying ...

Scientists have discovered a new species of pterosaur – a flying reptile that soared above the dinosaurs more than 200 ...

IRONWOOD FOREST NATIONAL MONUMENT, Ariz.—Standing in front of a crowd of 100 people Saturday, Mike Quigley pointed out into the distance to a nearby copper mine. “We can have that,” he said.